@alsvartr,
sorry for the late response. It seems the game cannot compile one of the required shaders (it cannot parse it and throws errors). This is very surprising as we have thousands of installations and nobody else reported a similar issue.
I see two possibilities:
1. The game data was damaged after/during installing. Please try reinstalling the game from the Launcher application.
2. The DirectX 11 shaders compiler is not properly installed. In particular, the library file "d3dcompiler_47.dll" which is used by the shaders compiler tool shipped with the game. This file is installed with .NET Framework 4.7 (as it depends on it) but before that, it was a separate download. Unfortunately, I cannot find a separate Microsoft KB* package to reinstall it. I've found a website
https://d3dcompiler.info which looks useful but please pay maximum attention as the provided DLL files might contain viruses.